Effect of Solid Lubricants on Sliding Wear of Steels

A Special Issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 5 December 2026 | Viewed by 926

Editors


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Guest Editor
Department of Materials Engineering, Universidad de Concepción, Concepción 4070409, Chile
Interests: tribology; physical metallurgy; powder metallurgy; solid lubrication

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Universidad del Biobio, Concepción, Chile
Interests: tribology; nanolubricants; carbon allotropes; powder metallurgy

Special Issue Information

Dear Colleagues,

We are pleased to announce a call for submissions to this Special Issue of Lubricants on the "Effect of Solid Lubricants on Sliding Wear of Steels", which aims to bring together leading research and new developments that advance our understanding of how solid lubricants influence the wear behavior of steel surfaces under sliding conditions.

We welcome both review papers and original research articles that explore theoretical models, innovative experiments, novel computational studies, and in-depth characterization of tribolayers. Contributions should address mechanisms of friction and wear reduction, emerging solid lubricants, synergy between solid lubricants, and performance evaluation across various environments and applications. Studies focusing on the development, characterization, and application of solid lubricant materials, as well as multi-scale analysis and case studies from industry, are especially encouraged.

We invite submissions from academic, industrial, and practical perspectives. This Special Issue offers an excellent opportunity to share your findings and engage with a community dedicated to advancing tribological science.

Dr. Nicolas Ignacio Araya
Dr. Guilherme Oliveira Neves
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • sliding wear
  • solid lubricants
  • nanomaterials
  • steels
  • friction
  • self-lubricating steels
  • tribolayer
  • tribo coatings

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Published Papers (1 paper)

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Research

14 pages, 13619 KB  
Article
Low-Temperature-Sintered Fe-Based Self-Lubricating Composites Reinforced with Graphite and Graphene Oxide
by Aaron Mora, Luis Chandía, Nicolás Landero, Christopher Salvo, Nicolás Araya, Claudio Aguilar and Guilherme Oliveira Neves
Lubricants 2026, 14(8), 283; https://doi.org/10.3390/lubricants14080283 - 23 Jul 2026
Viewed by 423
Abstract
Self-lubricating iron-based composites produced by powder metallurgy are promising materials for reducing friction and improving component durability under dry-sliding conditions. In this study, three composites reinforced with graphite and/or graphene oxide (Fe10%Gr, Fe10%GO, and Fe5%Gr5%GO) were fabricated to evaluate the influence of solid [...] Read more.
Self-lubricating iron-based composites produced by powder metallurgy are promising materials for reducing friction and improving component durability under dry-sliding conditions. In this study, three composites reinforced with graphite and/or graphene oxide (Fe10%Gr, Fe10%GO, and Fe5%Gr5%GO) were fabricated to evaluate the influence of solid lubricants on densification, hardness, and tribological behavior. Powders were uniaxially compacted at 500 MPa and low-temperature-sintered at 880 °C under an argon atmosphere. The tribological performance was assessed by pin-on-disk tests against an AISI 52100 steel ball. Pure Fe exhibited the highest hardness (approximately 97 HV) and a final porosity of 17.5%, whereas the lubricant-containing composites showed porosities ranging from 17.3% to 22.8% and lower hardness values of 45–60 HV. Despite the reduction in hardness, all lubricant-containing compositions decreased the coefficient of friction relative to pure Fe (~0.33). Fe10%Gr and Fe5%Gr5%GO exhibited the lowest friction coefficients, reaching ~0.08 and ~0.05, respectively, while Fe10%GO showed the highest wear rate (~1.1 × 10−2 mm3/Nm). Among the compositions studied, Fe5%Gr5%GO showed the best friction–wear balance among the self-lubricating formulations, combining low friction and moderate wear due to a surface synergy where graphite promotes continuous low-shear lubrication while GO promotes the formation of a more compact and resilient protective tribolayer. Full article
(This article belongs to the Special Issue Effect of Solid Lubricants on Sliding Wear of Steels)
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